Manifold heating device



Mar. 27, 1923. 1,449,497.

T. G. CONCANNON ET AL. MANIFOLD HEATING DEVICE.

FILED NOV- 5, 1 920.

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THOMAS EG. ooNoANNoN ANn LESLIE w. PETERSON, por marcata, NANSAS; sArio rE'rEasoN Assioma 'ro SAID ooNoANNoN.

c MANFOLD HEATING DlEVCE.

Appiiaaon'aled November 5, 1920. senta No. 421,922.

T0 all whom it may concern.'

Be it known that we, THOMAS Gr. UONGAN- 'NoN and LESLIE W. PETERSON, citizens of the United States, residing at Emporia, in the county of Lyons and State of Kansas, have invented a certain new and useful llinprovement in Manifold Heating Devices, of which the following is a specification.

Our invention relates to improvements in manifold heating devices;

The object of our invention is to provide novel means by which the intake' manifold of an explosive engine may be heated from the exhaust manifold Vof the engine.

Uur invention provides further ya novel heat conducting plate adapted to be clamped against the intake and exhaust manifolds of an explosive engine for conducting heat from the exhaust manifold to the intake manifold.

Uur invention provides further a 'heat conducting plate of Substantial body, which is cheap to make, which is durable, which may be easily andreadily applied by an unskilled person to the manifolds of an engine now in use, and which is adapted to be attached to the manifolds by the clamping mechanism now usedv for clamping the man1- folds to the engine body, and without change of mutilation of the engine structure, and which will equally heat the branches of the intake manifold which lead to the different intake ports.

The-novel features of our invention are vhereinafter described and claimed.

ln the accompanying drawing Which'illustrates` the preferred embodiment of our invention,

F ig. l is a side elevation of a portion of an explosive engine provided with our improvement.

Fig. 2 is a vertical section on the line 2--2 of Fig.

lfig. 3 is an inside elevation of the heat conducting plate.

Fig. a is a horizontal section on the line 4;--4 of Fig. l.

Similar reference characters designate .similar parts in the different views.

l designates the body of an explosive ena gine of a type now lin common use and the intake and exhaust manifolds of the same.

As ordinarily constructed the manifolds 2 and 3 are clamped to the body-1 by means of four horizontal clamping plates 4, which are respectively mou-nted on .four horizontal outwardly extending bolts 5, the inner ends of which. are attached to the engine body l and the outer screw threaded ends of which have respectively mounted on them nuts 6 which respectively bear against the outer sides ofthe clamping platesd. As ordinarily used the clamping plates 4 are so'arranged that each plate bears against adjacent portions of the two manifolds in a manner well known.

7 designates our improved heat conducting plate which is of substantial body and approximately rectangular in form and which is adapted to be disposed intermedi ate of the two inner bolts 5, and which is f adapted to it snugly and bear against the outer sides and middle portions of the manifolds 2l and 3.

The outer side of the plate I7, is preferably provided adjacent to its right and left edges respectively with two recesses 8 which are adapted to respectively receive the adjacent ends of the two inner clamping plates 4. rfhese two clamping plates serve to securely clamp the plate 7 against the outer' sides of the manifolds 2 and 3 in addition to their function of clampingL the manifolds to the engine body For facilitatingthe conduction of heat from the exhaust manifold 3 to the intake manifold 2, the middle portion of plate 7 is provided with an inwardly extending projection 9 of substantial thickness and body, which projection is adapted to be disposed between and fit against the two conducting portions l0, of the exhaust manifold which respectively lead from the two Vinne; ex haust ports il ofthe engine body.

'llhe inner side of the plate 7 is formed to tit the outer sides of the manifolds 2 and 3.

in the type of engine .referred to, the manifold is provided with two laterai branches which `-ead to the intake ports of intake ports being desigr The plate covers equal portions of the two branches of the intake manifold 2, so that these two branches are heated by the plate 7 to substantially the same degree.

In applying our invention to the vtype of engine referred to, the two inner nuts 6, and

' the two inner plates 4 are removed from the y against the outer side of the plate 7.

bolts 5 which support them, after which the plate 7 is mounted in position against the manifolds 2 and 3 and between the two inner bolts 5. rlhe removed plates a are then replaced on the two 4inner bolts 5 in a manner such that their outer ends will bear 'against the two .branches ofthe intake manifold and with their inner endsmounted re,-4

spectively in the recesses 8 and bearing The two removed nuts 6 are then replaced upon the bolts 5, and are tightened, so that the plate 7 will be tightly clamped by the two adjacent plates el 'to the outer sides of the manifolds 2 and 3. l

The heat from the exhaust manifold 3 will be .conducted bythe plate Y to the intake manifold 2, which will thus heat the incoming explosive mixture, thus, in a manner well known, increasing the efficiency of the engine and affording a large reduction in the amount of fuel required.

ln the application of our improvement, no alteration of the engine structure, or other parts is required and an unskilled person can quickly and easily apply the heating plate to the engine.

` lVe do not limit our invention shown andv described, as modification, within the scope Magnavof the appended claims may be made with-v out departing from the spirit of our invention.

What we claim is l. ln a manifold heating device, the combination with an engine body, an intake manifold having two branches, `an exhaust manifold having two branches, two bolts attached to the engine body, and two clamping plates respectively mounted on said bolts and respectively bearing on the outer sides of the branches of the intake manifold, of a heat conducting plate of substantial body, held by the two clamping plates against the outer sides of the two manifolds intermediate of the ends of the branches of the intake manifold andhaving at its inner side a projection fitted between and against the two branches of the exhaust manifold, substantially as set forth.

names to this siecication. A

TH() AS G. CUNCANNON. LESLIE W. PETERSON. 

